148 lines
3.6 KiB
JavaScript
148 lines
3.6 KiB
JavaScript
/*
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Language: MoonScript
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Author: Billy Quith <chinbillybilbo@gmail.com>
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Description: MoonScript is a programming language that transcompiles to Lua.
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Origin: coffeescript.js
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Website: http://moonscript.org/
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Category: scripting
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*/
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function moonscript(hljs) {
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const KEYWORDS = {
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keyword:
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// Moonscript keywords
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'if then not for in while do return else elseif break continue switch and or ' +
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'unless when class extends super local import export from using',
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literal:
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'true false nil',
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built_in:
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'_G _VERSION assert collectgarbage dofile error getfenv getmetatable ipairs load ' +
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'loadfile loadstring module next pairs pcall print rawequal rawget rawset require ' +
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'select setfenv setmetatable tonumber tostring type unpack xpcall coroutine debug ' +
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'io math os package string table'
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};
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const JS_IDENT_RE = '[A-Za-z$_][0-9A-Za-z$_]*';
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const SUBST = {
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className: 'subst',
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begin: /#\{/,
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end: /\}/,
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keywords: KEYWORDS
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};
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const EXPRESSIONS = [
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hljs.inherit(hljs.C_NUMBER_MODE,
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{
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starts: {
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end: '(\\s*/)?',
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relevance: 0
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}
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}), // a number tries to eat the following slash to prevent treating it as a regexp
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{
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className: 'string',
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variants: [
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{
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begin: /'/,
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end: /'/,
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contains: [ hljs.BACKSLASH_ESCAPE ]
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},
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{
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begin: /"/,
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end: /"/,
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contains: [
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hljs.BACKSLASH_ESCAPE,
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SUBST
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]
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}
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]
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},
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{
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className: 'built_in',
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begin: '@__' + hljs.IDENT_RE
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},
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{
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begin: '@' + hljs.IDENT_RE // relevance booster on par with CoffeeScript
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},
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{
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begin: hljs.IDENT_RE + '\\\\' + hljs.IDENT_RE // inst\method
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}
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];
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SUBST.contains = EXPRESSIONS;
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const TITLE = hljs.inherit(hljs.TITLE_MODE, {
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begin: JS_IDENT_RE
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});
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const POSSIBLE_PARAMS_RE = '(\\(.*\\)\\s*)?\\B[-=]>';
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const PARAMS = {
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className: 'params',
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begin: '\\([^\\(]',
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returnBegin: true,
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/* We need another contained nameless mode to not have every nested
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pair of parens to be called "params" */
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contains: [
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{
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begin: /\(/,
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end: /\)/,
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keywords: KEYWORDS,
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contains: [ 'self' ].concat(EXPRESSIONS)
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}
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]
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};
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return {
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name: 'MoonScript',
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aliases: [ 'moon' ],
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keywords: KEYWORDS,
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illegal: /\/\*/,
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contains: EXPRESSIONS.concat([
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hljs.COMMENT('--', '$'),
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{
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className: 'function', // function: -> =>
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begin: '^\\s*' + JS_IDENT_RE + '\\s*=\\s*' + POSSIBLE_PARAMS_RE,
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end: '[-=]>',
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returnBegin: true,
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contains: [
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TITLE,
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PARAMS
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]
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},
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{
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begin: /[\(,:=]\s*/, // anonymous function start
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relevance: 0,
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contains: [
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{
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className: 'function',
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begin: POSSIBLE_PARAMS_RE,
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end: '[-=]>',
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returnBegin: true,
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contains: [ PARAMS ]
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}
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]
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},
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{
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className: 'class',
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beginKeywords: 'class',
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end: '$',
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illegal: /[:="\[\]]/,
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contains: [
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{
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beginKeywords: 'extends',
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endsWithParent: true,
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illegal: /[:="\[\]]/,
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contains: [ TITLE ]
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},
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TITLE
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]
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},
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{
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className: 'name', // table
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begin: JS_IDENT_RE + ':',
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end: ':',
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returnBegin: true,
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returnEnd: true,
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relevance: 0
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}
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])
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};
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}
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module.exports = moonscript;
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